I finished the debug on the GM TBI to megasquirt adapter board today and unbolted the holley 4bbl and bolted on the TBI injector using an adapter from holley to my offy intake. Hooked the fuel supply and return line to the TBI, plugged in the adapter board to the stock GM harness, then plugged the megasquirt into the adapter board. Hooked up the HEI neg. terminal to the tach input on the MS and turn the key. Fired on the 2nd shot and ran fine considering it was using the default fuel curve.
So a $500 EFI setup with no/minimal (usually just to delete unneeded wiring in a retro-fit appplication) wiring hassels is now possible...
The Adapter boards will be ready for regular folks in about 2-3 weeks.
For 194/230/250/261 applications get a TBI unit out of a 88-92 4.3 V6 astro van, for 292 get one out of a 88 -92 full size pick up truck with a 350. You can keep your point distributor if you wish - better if it has the pertronix kit. The only gotcha is you need a 12V electrical system... no one every has made 6V injectors..
A couple of vids and some pix - note the real high tech throttle hookup
- its only a temp set up.
http://img261.imageshack.us/my.php?image=dscf0006uk8.jpg http://img340.imageshack.us/my.php?image=dscf0006it7.jpg http://img358.imageshack.us/my.php?image=dscf0007om9.jpg http://img532.imageshack.us/my.php?image=dscf0003ul9.flv http://img532.imageshack.us/my.php?image=dscf0008ps5.flv http://img532.imageshack.us/my.php?image=dscf0009mh2.flv
