Originally Posted by HaxbySpeed

The earlier TBI unit is based off the old GM OEM style tbody with the pod injectors on top. You can run that throttle body with the Avenger, or HP ecu. The avenger kit is more of an entry level package, but you can plug in your laptop and have the full functionality of the HP, or you can order the HP kit and add whatever else you want. It is a great unit, and has been very reliable in adverse conditions for many years. It is however, not very nice to look at... Everyone else was introducing new exciting looking throttle body's that, even if they didn't work as well, were outselling the Holley. So, Holley built a new unit based on the their throttle body that is used by NASCAR. It is much more aesthetically pleasing then the old unit, and so far seems to work as well or better. You can also plug a laptop into the terminator ecu to have full programability, and still use the hand held as an auxiliary gauge, for AFR, or whatever. The pricing isn't that much different between the two. If be happy to send you a quote for both if you like.

Originally Posted by MER Performance

Just finished a 540. J Wurl's Formula. His original build was same engine 4.500 bore, 4.250 stroke, 9.6 cr ,AFR 305 with cnc chambers, Marine Kinetics Hyd roller, Mild .638/.621 His original set-up was a 500 EFI intake with a single blade throttle body attached to intake center, MEFI. Here we are now with the Holley HP set-up. Edelbrock intake, 2000 cfm TB, same cam. 690 PK Torque, 714 Hp. Custom, ECU and electrical bracket, center plate adapter to replace Holley's, that includes regulator mount. Harness was a non-terminated, with a new non-terminated 6' 12volt engine harness

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