i dropped in a gm 350 h.o. crate engine (330 hp 380 tq). stock stall with a 700r4. also with 2.73'2 and an open diferential. 255/60-15 rear tires. 650 holly dp carb preformer intake, 14x3 element. what do u think i would run? thanks

 

without driver error...14's mid

 

that sucks, what about 3.73 open diff? posi? ill be happy with a 13 second car... whats necessary? thanks

 

http://www.73-87.com/chp/gm3508.htm

 

with a aftermarket stall high 13s at 98 mph. Stock stall low 14s at near same speed.

I estimate this because a guy at the local track runs a 13.8 at 97 with that exact motor and a TPI and 2.73 gears.

 

with that open differential, your 60ft times are gonna suck..although the 2:73's will help you out some..if you swap in 3:73's you for sure will need a posi unit...Your link gives you some great info. Im thinking that motor comes with the72cc heads doesnt it?

 

I thought the 330 hp 350 HO was the one with 64cc vortec heads.

 

I don't know about the chamber size but it does come with Vortec heads for sure.

 

I'd say the best you'd run with stock suspension, those 15" tires, and open diff is mid 14. low 14 if your lucky. Switch to a fatter bigger tire, some suspension upgrades, and a good stall and you could hit 13's. The way you are right now, your gonna light up those tires.

 

I apologize... I thought the link I gave was for the 330HP motor. I just realized it isn't the same.

http://www.sdpc2000.com/cart.asp?act...id=120&pid=462

I believe that a 3.23 geared posi would put you in the power band effectively enough to net you some mid 13s.

http://www.prestage.com/Car+Math/ET+...+/default.aspx

 

I would agree.....but 3:42's or 3:73's would be a better choice IMO... Not to mention a little tranny work...
PS...just the opinion of a shade-tree mechanic!