Evil TA

yup just so happen that 87 was the last year for the LG4...

Tru2Chevy

My car started with roller LG4 as well. I fired that part a long time ago....

- Justin

JamesCamaro

I used a Summit cam, Edelbrock intake, carb tweeks as well as DR rods and G hanger, and an L69 dual snorkel with KN, full L69 exhaust--manifolds, y-pipe, and intermediate pipe along with a high-flow cat (the L69 exhaust is essentially a 350 exhaust), and messed with the timing a bit. Awoke the old boy. No comparison, however, with the 350 HO Deluxe I'm currently running.

JamesC

Zepher

On my 86 LG4 Trans Am, the best bang for the buck had to be the Edlebrock 1406 carb and 7101 Dual Plane hi-rise intake (and vacuum advance distributor).
$400 total at the time and got my car to run a 14.943 @ 92mph with a 2.1 60'. not bad for 165hp stock motor with 113K miles on it and only those mods.

I then did a TPI swap with TPI heads, Crane Cams Powermax 2050 camshaft, headers, MSD 6A, Blaster 3 coild, full exhaust, SLP Dual cold Air, 52mm TB, and the car ran a 14.1 @ 100mph with a 2.3 60' in Limp Home Mode. this was about $1500 total.

for comparison, the car in my sig only runs a 15.2 @ 91.5mph.

Ray86IROC

I'd jump right on doing a intake swap (to at least a Performer, better yet a Performer RPM w/ a drop base aircleaner to fit under the hood, try to score one cheap on ebay or something) and a cam swap at the same time. Something cheap like the "Summit TPI Cam" kit that specs out around 204/214 duration @.050, .420/.442 for lift and runs a little over $100. Comes w/ springs and junk and runs pretty mild in a 305, together that will add in some serious horsepower even w/ the stock exhaust. Then I'd jump on exhaust next as money allows. Might as well buy the whole exhaust together, buy it for a single cat TPI car and you'll get 3 inch stuff. You can make 250+ hp easily w/ a LG4 setup like that.