Have some questions about my build. My 87 TA had a 4bbl 305 and im replacing it with a TBI 350. The engine is from an 89 chevy truck. I plan to get headers, delete emissions(AIR, cat etc), get new cam, and maybe new intake. Also, i have an auto trans and im going to buy a rebuild kit. So here are my questions
(keep in mind that i dont care about being street legal or passing emissions)

1 What cam should i get? The heads are stock on the 350, and i want to use the car for daily driving and street racing. i dont care about gas milage, i just want to beat up on some mustangs on a fri/sat night. What would be the best cam to get to achieve good acceleration? since i want to street race, top speed isnt really important. the whole lift and duration kind of confuses me, and i heard you need to take into consideration comp ratio but i dont know it. i just want a cam setup that will give me a lot of power but can be used on the street

2. what would be the best headers to get to give me a good hp gain? im looking to spend around 200-300 bucks.

3 should i keep the TBI or go to a nice 4 barrel setup? Our original plan was to go with a carb and get rid of the computer and emissions crap leaving just a motor, but would i get more power with the TBI or with the carb? again i dont care about gas milage just horses.

the whole plan for the car is to get some decent power on a budget. i have enough to get things like headers, rebuild kit, cam, etc but i dont want to go crazy. with your suggestions what kind of hp can i expect? sorry its so long but i dont want to build a bad combo and have a weak engine. thanks in advance

 

Lose the TBI If you are going to change the cam. The truck engine has hydraulic flat tabet cam in it but is set up for a hydraulic roller cam. you will gain a little power with roller but it will cost a little more. For a flat tappet I would run a Xtreme Energy XE268H Hydraulic Flat Tappet from comp cams. I have several friends that run this cam and love it. For a roller I would run a Xtreme Energy XR282HR Hydraulic Roller Camshaft.

 

thanks. if i use the Xtreme energy Flat tappet, will the stock lifters/valve springs/timing chain and gears work or do I need to upgrade those as well.
Also, what is a good carb to go with?And what size?

 

You should always use new flat tappet lifters on a new cam shaft. I would upgrade the valve springs also. With this cam Z28 springs will be fine and save you some money. Qjet is my choice.

 

what do you mean by z28 springs? stock z28 or aftermarket?

 

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Product Details
RV-1943X
Elgin
Small Block Chevy +.100 High Performance Springs
$44.80 Set (16)
3 LB



Need to double check with comp but these should work I have used them for years.


Product Description
Specifications:

• Spring Type - Single w/Damper
• Outside Diameter - 1.250"
• Max Lift - .550"
• Nominal Load for Checking -
125lbs. @ 1.750"; 325lbs. @ 1.200"
• Coil Bind - 1.16"
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I don't know for sure but I have been told they are stock replacment for the 1970 LT1.