I'd suggest going to a yard & getting (2) OE 4 pin ECU's. OR (2) from a parts house (most are overseas made now), even the standard motor products LX101 (I believe). A high(er) dollar one might give more power but I ain't convinced but I cant say for sure. I like the HEI mounted under the dist on an alum plate (easy to make) or www.designed2drive.com has a nice alum tailor made one but it is pricey (dont forget the heat sink paste between it & the alum plate) & its a full 12V system so get an E coil or some full 12V coil. Dogdays had me get the furd TPI coil mentioned (yes dirt cheap from RA) & I put it on a DD truck with an OE HEI module & it was a new buildup then was sold quick all of a sudden so no actual before/actual exp but nothing jumped out at me about it but that setup is coming back to me in a trade so I will be trying it on something current. As I'm typing this I now remember that it did start instantly every time.