Well I sent the "Thermol Plate" back to Clifford thanks to several of your comments. Thanks to this "B" Board I have found someone that can make a part for me that should word. I surely am glad I found you all. This is the set up I have put together, it is ment to pull a small hunting trailer(18') and carry a Polaris Sportsman 500 (850 lbs.)into the mountains of Arizona (10,000 ft). Please feel to step up and tell me if you find a fly in my ointment. I have a 1973 GMC
250 CID from 69 Nova, a Saginaw 4spd. from 78 Camero. The motor has a CompCam 240 duration, recurved Mallory Duel Point distributor, total advance 2800rpm. Clifford headers and intake with Holley 390 cfm 4bbl,stock jetting,
