Here is what I have:
306 Rotating system (DSS blueprinted and balanced system .030
flycut high comp piston, crank shaft rods, pilot bearing, Federal
mogual bearings. Static compression is around 11.20 to 1
Race prepped block, bored, deck aligned, magnafluxed, re-honed, enlarged oil passages.
Main cap support system ( DSS )
Comp Cams Competition Roller camshaft ( #35-522-8 351w, grind# fw xe282hr-12 hyd )
Edelbrock timing gears set
Trick Flow Chromoly Pushrods (6.550 )
Roller Lifters ( Crane cams hyd lifters )
Roller rockers ( harlen sharp 1.6 ratio 7/16 stud )
Heads ( Canfield power adder Stage 2 CNC match ported)
Radiator ( 3 row aluminum core )
Water pump ( Edelbrock aluminum high vol )
Fuel pump ( Holley Red )
Fuel Regulator 7 PSI (Holly)
Fuel duel feed with pressure gauge
Oil pump (slp high volume )
Carb ( Holley 650 cfm double pumper 4150 style 4777S )
Manifold (Edelbrock Victor junior single plain )
17” Flexilite fan
14” x 4” air filter ( K&N )
Distributor (MSD Billet)
MSD 6a ignition box and MSD coil
MSD wires
BBK 1 5/8 full length headers
BBK short off road h pipe
Exhaust 2.5” over rear end to 3” outs ( Flowmaster mufflers )
The problem is that when Vacuum line is hooked up it pulls 10lbs of vacuum and runs rich as a pig (16:1) all the way through the power band, even after I set my idle screws and fast idle. When I take my main vacuum line off it jumps to 15 and my A/F goes to 14:1, runs just like it should and the a/f is correct all the way through the power band. The cam was advanced I believe 4 degrees when I installed it. Timing adjustments do nothing, idle mixture screws adjust to ideal vaccum and it still runs rich. Is the cam maybe way off and causing this?
The car has been this way for 2 years because it gets driven twice a year, now i want to drive it on the weekends and take it to the track but it runs too rich.
What could be wrong, my father and I build the motor in our garage and after adjusting my original 800 cfm carb and figuring it was too big i just bought the 650 last week.
This is very frustrating and I would appreciate any help you can give me because its no fun to drive a car that stinks of gas!!
Thanks,
Mike
306 Rotating system (DSS blueprinted and balanced system .030
flycut high comp piston, crank shaft rods, pilot bearing, Federal
mogual bearings. Static compression is around 11.20 to 1
Race prepped block, bored, deck aligned, magnafluxed, re-honed, enlarged oil passages.
Main cap support system ( DSS )
Comp Cams Competition Roller camshaft ( #35-522-8 351w, grind# fw xe282hr-12 hyd )
Edelbrock timing gears set
Trick Flow Chromoly Pushrods (6.550 )
Roller Lifters ( Crane cams hyd lifters )
Roller rockers ( harlen sharp 1.6 ratio 7/16 stud )
Heads ( Canfield power adder Stage 2 CNC match ported)
Radiator ( 3 row aluminum core )
Water pump ( Edelbrock aluminum high vol )
Fuel pump ( Holley Red )
Fuel Regulator 7 PSI (Holly)
Fuel duel feed with pressure gauge
Oil pump (slp high volume )
Carb ( Holley 650 cfm double pumper 4150 style 4777S )
Manifold (Edelbrock Victor junior single plain )
17” Flexilite fan
14” x 4” air filter ( K&N )
Distributor (MSD Billet)
MSD 6a ignition box and MSD coil
MSD wires
BBK 1 5/8 full length headers
BBK short off road h pipe
Exhaust 2.5” over rear end to 3” outs ( Flowmaster mufflers )
The problem is that when Vacuum line is hooked up it pulls 10lbs of vacuum and runs rich as a pig (16:1) all the way through the power band, even after I set my idle screws and fast idle. When I take my main vacuum line off it jumps to 15 and my A/F goes to 14:1, runs just like it should and the a/f is correct all the way through the power band. The cam was advanced I believe 4 degrees when I installed it. Timing adjustments do nothing, idle mixture screws adjust to ideal vaccum and it still runs rich. Is the cam maybe way off and causing this?
The car has been this way for 2 years because it gets driven twice a year, now i want to drive it on the weekends and take it to the track but it runs too rich.
What could be wrong, my father and I build the motor in our garage and after adjusting my original 800 cfm carb and figuring it was too big i just bought the 650 last week.
This is very frustrating and I would appreciate any help you can give me because its no fun to drive a car that stinks of gas!!
Thanks,
Mike