258tbi.com 4.2l TBI conversion adapter plate set
Hello everyone. Here is a new option in building a DIY junkyard 4.3 tbi kit for your 258. I designed and machined a precision port matched adapter system for the 4.2 2bbl aluminum intake manifold. Not just a hole in a plate. Check out eBay item #350876059214 for more info and pictures. Unfortunately my picture sizes were too large to post on the forum. Please feel free to send me q's.
Last edited by Copperheadrd; 09-15-2013 at 11:32 AM..
Reason: Decided to just list them on ebay instead of the cost of a website.