What do u guys think about this set up ..will it be good or should i start from ground zero .. anyways i have the ZZ4 350 crate engine .. it cost me 4,295 bucks .. well anyways it was listed at 355 HP at 5250 rpms compression is 10.0:1 it has aluminum corvette type heads chamber size is 58cc valve size 1.94" int, 1.50" i also have the GM performance parts roller rocker arms 1.52 ratio 3/8 stud self aligining came with push rods and i have a comp cam
HYD flat tapped for a choppy idle and lastly i have accel performance plug wires .. now do u guys have any suggestions .. and do u think it will run well ..

Currently have a 1991 firebird 305 TBI with ram air hood k&n filter ram air set up .. no cat .. american thunder muffler , cat back ..( soon to be SLP loud mouth i think) also im getting a new Tranny .. so what do u guys think

 

i didn't mention in my last post i havn't put the engine in yet .. its in my garage getting things added to it everyday

 

I think it sounds great. I don't know very much about engines, but that sounds good! That sounds like what I'll be doing. I'm gettin' a new engine Sunday, and it's gonna be in my garage gettin' new parts whenever I get the money. Anyway, good luck!

 

Depends on the cam...

Get rid of the L03 exhaust, every piece, all the way from the heads to the street. The cat-back you have should be OK, now you need to get headers for some application other than the L03, such as for a 350 TPI. If you get L03 stuff you will be preserving the bottleneck in the system, namely the drinking-straw Y-pipe size.

Why are you taking out the perfectly good ZZ4 roller cam & lifters, and putting in a flat-tappet? That's a step backwards.

 

well some one told me they would perform better .. i was like ok what the hell if it adds something then i was going to get it .. i will have to ask around and see what they say .. thanks for the info man

 

For a cam I'd reccomend the LT4 Hotcam. While you're in there you can do a basic port/polish job on the heads, and since you will have them apart, you could stuff some bigger valves in them and get a 3 angle valve job. You can also replace the distributor and intake if you want to squeeze every last pony out of it.

 

thanx alot i didn't even think about the porting and polishing while i had it apart .. thanx for all the info guys

 

If you have money to blow have the heads chryogenically frozen, since they're aluminum they'll flex alot and that's not a good thing. Also have them heat treated, that will prevent heat from escaping the chamber and into the rest of the head by over 200% and improve your combustion, therefore giving you more power. But for $4,200 I would have expected more HP.