HP estamates

[87Mustang351]

hey guys just seeing what you all think i will run for HP

i have a
351W
.040 over
1970 ford W heads slightly ported
1.6 Comp roller rockers
274XE comps cam n lifters
eddy RPM air gap intake
bbk shorty headers
750 holely DP
MSD 6AL

thats all i can think of for now

also what HP shot of NOS should i add 100 or 150?

thanks

 

[87Mustang351]

well sence everyones to scared to start, i'll say 270-280 RWHP andd 300 RWTQ?

 

[whtpny]

What compression ratio?

 

[87Mustang351]

actually thats one thing i dont know..dont even know what kind of pistons are in it, no one told me anything when i bought the car

 

[whtpny]

Yea knowing the type of piston and the chamber size would help. I saw a dyno from a 67 recently with a close sombo to yours and he had about 245 to the wheels and 290 or so tq but he had an auto. Also had 9:1 compression.

 

[86bluecobra]

It is very close to my combo minus the heads. Make sure if you run the juice (which i think you should run and install the 150 jets) that you run 2 step colder plugs and retard the timing 6 degrees.

 

[87Mustang351]

ok man thanks alot sounds good, so 150 shot it is, 245 to the wheels seems kinda low?

 

[ryan218]

250rwhp 280ish rwtq

 

[fiveohwblow]

I think with the 150 shot your are much closer to the 300 to the wheels mark.. easily.

 

[87Mustang351]

im hoping for 260ish to the wheeels without the NOS, we will see tho, where i live its hard to come across a dyno