[427TJ]

Thanks again everybody, I have PM'd Eric for more advice.

In 1980 I had a '67 327 (built for Friday night street races) 4-speed Camaro. I bought a 780 vac-sec Holley off of a bulletin-board ad in the local speed shop for about $100. The seller was a Holley engineer (he said) and called the 780 I bought a Z/28 carb. It needed NO jetting or adjustments of any significance and it performed very well. I was sorry to have let it go when I sold the car. I remember thinking that I should buy a new Holley and put it on the car and keep that great 780. Oh well!