ok guys im planning on getting a 350 and would like to know what i would be running with the following mods


HSR (Holly Strealth Ram)
Hooker Super Comp Headers
LT4 Hotcam
2800 stall converter
custom chip work
125 shot of nitrous

i was also thinking about porting the heads

i was thinkin around mid 12's with traction

 

anybody? i just want to get a rough estimate on what times ill be running with the amount of work done

 

With the right supporting mods and traction, I could see mid 12s on spray!

 

You should see high 12's on motor alone and low 13's all day long. That combo will put aroud 330 to the wheels. With spray you should be deep into the 12's.

 

yea that what i was figuring around low 13's on the motor and mid to low 12's on spray. even my hp guess was around 330 so with the spray ill be pushing around 450. im also going to be getting the heads ported and its getting bored .030 over to a 355 and getting port and polished.

lol i hope i run into that mustang again "that runs 12's" so i can show him what a true 12 second car looks like

 

330? hardly, not to knock, but I don't see that happening with stock heads. HSR is pretty trick, but it's not that trick. I would guess hp closer to 280 at the wheels, if it's tuned right. Cars don't sem to dyno as high as people think. I seen a Ported Vortec headed, .500+ lift cammed, car with all the goodies dyno only 215...wasn't with HSR, it was with a amtched Intake and carb. i dunno, maybe I'm not giving it enough credit

 

well the HSR adds at peak around 40-60 hp also the heads are going to be reworked and ported, just that would produce more than 280hp

oh and by the way this will be on the 350 not my 305 that is currently in the car, also take into account that all the mods that are on my 305 will be swapped over. altough i will have to go with a diff spark plug cuz ive heard bad things about running platinum spark plugs with nitrous

 

I'd have to agree with Shifty! Easily low 13's-high 12's on engine and low 12's-possibly high 11's on spray! Dyno numbers can be deceiving. Dynojet or Mustang? SAE Corrected or not? I dyno'd 253 RWHP and 362 RWTQ uncorrected on a Dynojet and sig numbers on a SAE corrected Dynojet. Is the 350 going to be a L98 or something else?

 

You are right. I made a crutial mistake. I didn't realize he had the stock heads. I overlooked that small detail. 280 seems about right. LT1 cars with that cam put down around 330 to the wheels. They however have much better heads. I have no idea how I missed that.

 

if i run pray i will have to change my spark plugs right? cuz i hear that u cant run platinum plugs with nitrous because it supplies to hot of a spark. is this true or will the spark plugs i have be fine with nitrous?

 

Run some AC Delco plugs, regular plugs. Platinum is not good for any V8 from our generation. I use R43TS's in my car, but I ahve a 9.5:1 compression V6 car.