I have a 350 that I recently did the top end on. Heres what I did.

Comp 503 Cam. 510,503
Stealth Ram Intake
Patriot Aluminum Heads. 5 angle valve job, 5/16 pushrods, 23 degree heads, intake volume 185-225cc
30lbs accel fuel injectors
Holley Fuel Rail
Stock Thermostat
Stock Throttle Body

Also I ran a 14.3 when the car was stock with rear gears (3:73)

Im getting the car dyno tuned next week and I want to have an idea on what numbers I should be getting with these mods and what my 1/4 could go down too.

Thanks.

 

So which are they, 185 cc or 225 cc?
Being it's a 350, I'd hope they're 185, not 225.
Did you at least put one of those air foils on your stock TB?
I'd hope for 350 RWHP, but no more than that.

 

185. have 1:6 roller rockers. It does have an air foil with the "Ram Vents"

 

I would say aroun 425 to 450 horses and 450TQ. My buddy has a similar set up with a lil smaller cam hes is only around 460 lift on both exhaust and intake he mad 384HP and 423TQ when we went to the dyno that was with stock heads and TPI. These estimates are at the crank

 

What can my 1/4 be then. These numbers are higher then I thought they be lol

 

What loss did they figure through the transmission?

 

350 RWHP, with a stock torque converter, and drag radials, should be mid 12s at sea level in good cool weather.

 

Yeah i know they mite be a lil but you shud be pretty close to 400 atleast i have a desktop dyno here to if you could give me the intake Centerline, LSA, and the lift at the cam lobe i cud tell you a lil better.

 

I have no faith in any version of DD, but the 503 is a 224/230 at 0.050", on a 112 LSA.
http://www.summitracing.com/parts/CCA-08-503-8/

 

17% loss but i always that that was a lil high

 

The desk top dyno isnt all that bad i do agree that it wont get you exactly what the engine is putting out but mine has been within 10HP and 10TQ of when i took i to the dyno

 

For a stick, 86-88% seems common, but with an automatic, 77-83% seems common. Automatics lose a lot to that internal pump having to create line pressure. Plus the torque converter...

 

Oh ok thanks i never been real great with all the engine mathmatics of power loss and gear ratios. i just build engines and put them in lol