CPI VS SHEAR

[mattsny83]

Building a 421 cub Going to run alky What pipes you all think would be best????

[mattsny83]

Building a 421 cub Going to run alky What pipes you all think would be best????

Going to be 300ft Sand Drag only

[shanYE west]

better to ask the person who did the porting.

[BoostedRex]

better to ask the person who did the porting.

 

Inframe? OOF?

 

But I would say CPI either way :ninja:

[shanYE west]

for 300ft sand most people will use shearer.. but. Some builders porting will favor other pipes. wether its big bore, small bore, CPI or shearer.. Best thing is to ask the builder wich pipe his porting likes.

[bonbon]

Inframe? OOF?

 

But I would say CPI either way :ninja:

You would............ :cool:

 

Since your running 300 ft. all top end the Shearer's may be a bit better, but I think they are both very close pipes. They both run hard.

 

And like said above.........get a recommendation from the builder if you get the cub ported.