Hi new guy here. Im looking to rebuild my 1994 Z28 and im needing to know if my car will fuel it or will i need to make change's to the fueling system- the specs FOR THE LT1 im looking at are ---hydraulic roller cam:duration in 220@..050- EX 230@.050- lift intake .510 exhaust .510 lobe separation 114 - HEADS: 3 angle v job combustion chamber 54cc intake runner175cc intake valves 1.94 exhaust valves 1.50 - : ROCKERARMS- FULLROLLER1.5 RATIO --PISTONS 11:1 and do you think this will get me up to about 350 rwhp. Thanks for your help

 

Considering that your car is 11 years old and a Walbro 255 is, what...? A hundred bucks or so...? Get yourself the wiring upgrade too.

Do yourself a favor and put in a new fuel pump. If you have a few more bucks a set of new injectors wouldn't hurt either.

Stuff wears out, you know?

Can you get away without it if money is tight?

I suppose.

But it's good policy to replace this stuff.

 

Sounds an awful lot like a cc305 on an otherwise stock LT1. If thats the case, then the answer's gonna be no, you wont get 350 rear wheel with that setup (not with bone stock heads anyhow). And you sure wont need more fuel pump unless yours is dead/dying now. Thats about the mildest cam anyone runs on these motors. I had one way back when, and it about put me to sleep LAME is right though, you should prolly consider replacing the thing just from a maintenance standpoint...

Good luck
Dave C.

 

Welcome to CamaroZ28com. As you may have noticed, we have specific forums for specific topics. Questions about an LT1 buildup should be posted in "LT1/LT4 Engine Tech", or if not directly engine related, in "General F-Body Tech....."

Moving......

 

It is very possible to get 350rwhp with a cc305. Iff you have that 11:1 compression. Maybe even a little higher would be more beneficial. You might want to try all the major bolt-ons too. i had a cc305 setup that put down 350rwhp.

 

thanks u all for the info

 

do 11.5:1 compression*what i have*, intake, headers, etc, and you should be set to throw down 350