Originally Posted by gearheadslife
you say efi is $$$$$$$$$ but are ready to spend 2k of this guys cash on head he don't need..
since this is an 89' 454 it should already have a TBI set up but the problem is that the TBI set up on it only meant to around 230-250hp/ 350-380tq max. From my understanding they aren't that easy to manipulate. So he would need to go with an aftermarket FI set up, something like this:
Edelbrock Pro-Flo 2 EFI Systems 35510 - SummitRacing.com
with just a quick search this was the cheapest EFI set up with a dual plane intake that also included the ECU, and it cost around $3200.00 to have it delivered to your door. Now let me ask you, are going to spend $3200.00 on an engine and use poor factory GM castings which wont even keep up with the flow of the EFI or would you spend the extra $1800-2200.00 on buying a set of heads to match the power potental of the EFI set up.
I'm gonna guess you're the "550hp-350ci with double hump heads" kinda guy