Not sure what you mean about lug down? I mean it will lug around at 2000 RPM in any gear with no issues. I'm not likely to have it in 5th gear at 1500 and then stomp on it if that's what you mean , but it will cruise along and then smoothly accelerate from 1500 in high gear....but truthfully I would probably drop a gear. I would drive a stock engined car the same way.
Obviously a 266-270+ @.050 cam is not a wimpy cam even in a 540. Having a stick makes a big difference in *luggability* along with what rear gears you have. I've got 3.07's so it would lug down lower in high gear if I had 4.56's.
If it was an auto it would be a cinch to tune and let the converter soak it up.
Sounds like 1phat72 is really looking for smoothness over power...so it would appear he's selected the right cam for his use.
I know a guy with a 454, hot roller cammed, aluminum headed Vette with EFI with a TKO and 3.08's who is literally determined to get it to have low speed manners like a new Caddy. He's been working at it for years.
Cam choice will have the biggest impact on manners...so select to what you are ultimately after.
Thank you for the info. The question was not for me, but aimed for one of our good friend's here on TC.
It is a real eye opener what you stated - "I know a guy with a 454, hot roller cammed, aluminum headed Vette with EFI with a TKO and 3.08's who is literally determined to get it to have low speed manners like a new Caddy. He's been working at it for years.
" I don't want our bud to think EFI is the be all/end all to obtaining "low speed manners like a new Caddy", spend all that time and money, and then be totally fustrated and put out, when all it takes is for him to push the clutch in, or downshift with his driving habits.
Good info, as the EFI section here is somewhat misleading in that you can have "low speed manners like a new Caddy" with a stick car and a hot cam. Maybe so, but not from your statement. Thanks again, and love that vette of yours.
Sorry to the OP, did not mean to hijack thread.