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yea porting the chambers out will change compression slightly but i thought you were reffering to the runners.

yes fuel mileage will suffer and a noticeable bit but it will help power. hotter engine temps will burn more effiecently with less fuel. at colder temps you may not notice a difference but after the car is warmed you will. your not dumping hot exhaust gases in the intake....hence...

are you saying ported heads change compression ratio? hmm. the only thing thats changing is the flow of the air. there will be less pressure in exhaust port due to more room for the air out but it wont change compression. the only time any kind of porting will change compression is if they...

yea i know metco is good ive had expirence with them b4. i skimmped out for a cheaper set and i guess thats what i got. i still thought for this car the UPR's would be fine but i was wrong. what got me is it broke them without hookin at all. i mean in 2 runs it did that kind of damage...

what part were u havin trouble understanding? lol.

ahh thank u blubullet, there is still intelligent lifeform on here. talkin ***** has always been a part of racin and its all in fun, but there are just some people u just cant talk to. sorry Kilgore Trout no cameras round these parts to take pics with. but u still managed to avoid the ? i...

i spoke with a guy that is sponsered by UPR and he said something was up since they wouldnt talk to me and he said they have cancelled an upcoming FFW race. so... and to Kilgore Trout, u think im throwing mods at this car. lol. no i had just never seen any probs from UPR till after these...

this car really hasnt been beat that much, like i said its been to the track twice and ive had it for about a year and ive only put maybe 8,000 miles on it. i would prob do low 20's. im just tryin to get an idea.

i have one pic that will load on here but its my avatar the rest of the pics i have of it are too big. it says my maximum amount of space is 78KB and all my pics are in the 100KB range. anyway i can shrink them but not permentaly? here is the only pic small enough. i just dont want to...

i have a 03 mach 1, mods are, slp long tube headers, slp x-pipe, and slp mufflers, 5.0 shifter, cold air intake, diablo hand held tuner, custom subframe connectors, aluminum driveshaft, driveshaft saftey loop, welded axle tubes, 4.30 gears, detroit locker(full locker), moser 31 spline axles, PA...

i own a black mach 1 i know a guy with a red one i know another guy with that mineral gray kinda color and i know another guy with another black one and my buddy is goin this weekend to look at gettin a white one.

can anyone explain how yall are sayin underdrive pulleys dont help and how did it mess up an engine? i just dont see how it could help it really. and i really dont understand how it would mess up an engine. i mean its just pulleys on the outside of the engine that take less drag off the...

i have an 03 mach 1 and i bought the SLP long tube headers for it. ive already heard its a pain. im new to the mustang world ive been a camaro guy for awhile but i wanted to know i read somewhere that i should install a 160 thermostat with these headers to help lower combustion temps to keep...