4 mil stock bore ported

[kakuschke91]

hey guys I'm doing my first build I got a kit from bp 4 mil hotrods crank 64mm ported cylinders running air box with k&n filter with or without k&n lid (its on back order) toomies t5s with stock carbs at 2130ft I'm running vito's red needles (any input on them appreciated) I was thinking 30's and 340 to start? 

[sleeper06]

If they ported the cylinders they should have a good idea where they are at 

[kakuschke91]

k thanks il ask them just thought someone would have similar build

 

[ginger]

as must as they may have a similar build, their elevation is most likely different making for different jetting. 

[sleeper06]

I know of no one that has had them port anything. Everyone work is different and will pull different fuel. I’m very surprised the stock bore was able to be reused. I’ve had two that measured good in the past 6 yrs. The stock pistons are set up loose to cut down on idiots cold seizing there engines , with that they tend to get a lil out of round from wear . After straightening out the bore stock size pistons rarely work. If he just honed it you will have premature ring wear and failure 

[Schweet97Z]

I’m pretty sure Jesse McComas from MAC Daddy Racing does there porting. Might want to talk with him as well.


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[kakuschke91]

I didn't reuse my cylinders the kit I ordered came with a set  it was cheaper for me to order ported cylinders from them then have mine done here.

 

[kakuschke91]

thanks for that I will double check  n call him 

[Ayesully810]

On 6/1/2018 at 10:26 AM, Schweet97Z said:

I’m pretty sure Jesse McComas from MAC Daddy Racing does there porting. Might want to talk with him as well.


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Really?? 

[Schweet97Z]

Really?? 

A local kid bought a ported 4 mil stock cylinder setup from BP. He had some jetting questions and told him the porting was done by Jesse and they told him to contact him.


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