67 Firebird 400 4 SPEEDcombo questions???

Hudlow66 · 06-14-2013, 12:43 AM

Don't be afraid to twist that Poncho. We've done it for many years, when people said "you cant do that".

As for the clutch, for many-many years, we used an old Borg & Beck style pressure plate. Had it "beefed up" and away we went. When we started running NHRA tracks, we had to update to an SFI unit and went with a McLeod soft lock set-up. Did that for about 15 years and got tired of ripping the disks and cracking the hats. Here just a couple years ago, we stepped up to a Boninfanti unit. What a difference! Only down fall is they only do a 1.4 cert., so Ive got to send it back every year to re-cert (wish they would've told us that when we were looking).

As for the car, I must confess that it is NOT a stock chassis car. If fact, it's a tube chassis piece. None the less, it's a (get ready for this) '68 Dodge Dart with a 400 Pontiac block, 4.25 stroke crank, iron RAIV heads, Liberty's 5-speed, Dana with 4.56. Launch at 6200, shift at 6500, go through the traps at about 6700. Best time (so far) is a 8.90 @ 148. I say "so far" because in Pro bracket, Im only supposed to go 9.0. I haven't had the chance to really stretch it's legs, since making some changes.

Im sure there's other pieces out there. This is just what Ive had the privilege to grow up with and learn about, over the years.

06-14-2013, 12:43 AM	#1
Hudlow66 Junior Member Join Date: Apr 2011 Location: Spokane Valley, WA Posts: 59 Likes: 0 Liked 1 Time in 1 Post	Re: 67 Firebird 400 4 SPEEDcombo questions??? Don't be afraid to twist that Poncho. We've done it for many years, when people said "you cant do that". As for the clutch, for many-many years, we used an old Borg & Beck style pressure plate. Had it "beefed up" and away we went. When we started running NHRA tracks, we had to update to an SFI unit and went with a McLeod soft lock set-up. Did that for about 15 years and got tired of ripping the disks and cracking the hats. Here just a couple years ago, we stepped up to a Boninfanti unit. What a difference! Only down fall is they only do a 1.4 cert., so Ive got to send it back every year to re-cert (wish they would've told us that when we were looking). As for the car, I must confess that it is NOT a stock chassis car. If fact, it's a tube chassis piece. None the less, it's a (get ready for this) '68 Dodge Dart with a 400 Pontiac block, 4.25 stroke crank, iron RAIV heads, Liberty's 5-speed, Dana with 4.56. Launch at 6200, shift at 6500, go through the traps at about 6700. Best time (so far) is a 8.90 @ 148. I say "so far" because in Pro bracket, Im only supposed to go 9.0. I haven't had the chance to really stretch it's legs, since making some changes. Im sure there's other pieces out there. This is just what Ive had the privilege to grow up with and learn about, over the years. __________________ Phil Hudlow 6678 (S/C, S/G, ET-PRO)