Did the same on a 88 D250 318...removed the tbi and all the smog equipment...got headers with dual exhaust, eddy performer intake...eddy performer carb, and hei distributor...runs a ton better....
completely removed computer and rewired engine compartment.
Tony
70 AARCuda Vitamin C 71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield) 71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas) 71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)