The "1025" sleeves were 1.562 as I recall..... The black ones.
In that venturi/throttle bore combo(1.562 x1.750) .....If it was a Race Demon RS it was a "1025", as a Race Demon w/o removable sleeves it was a "1000", and if it was a Mighty Demon it was an "850".
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
