X274 or Thumpr?
03-29-2014, 04:04 PM
#1
X274 or Thumpr?
I know there are tons of post on cam choices but if you only had 2 to choose from which would it be? (I already have these 2)
I am putting together a 70 model X code 340 with .30 over pistons, RPM air gap intake, TTI headers and Holley Terminator EFI. It has X code heads as well. I would rather use one of the camshafts I have rather than buy another. I have a Comp X274H and a Comp ***** Thumpr that I can use.
What would your choice be?
It is going in a 70 Duster, 4 speed, manual disc brakes. Its just a weekend cruiser but I don't want it to be to much of a dog, I want it to go when asked to.
I am putting together a 70 model X code 340 with .30 over pistons, RPM air gap intake, TTI headers and Holley Terminator EFI. It has X code heads as well. I would rather use one of the camshafts I have rather than buy another. I have a Comp X274H and a Comp ***** Thumpr that I can use.
What would your choice be?
It is going in a 70 Duster, 4 speed, manual disc brakes. Its just a weekend cruiser but I don't want it to be to much of a dog, I want it to go when asked to.
03-29-2014, 08:34 PM
#3
Mopar Lover
The Thumpr series of cams have small lobe seperation too much duration for the smaller lift to support, all to make noise in a low compression engine. I wouldn't put it in any engine, ever!
