do the new nova engines come with a carb with insulator at the neck?

The 2630 is a rpm pipe, if you get a good one. They seem to vary in quality.
The 2602 is a better all around pipe IMHO. It gives you more torque and better midrange but you loose a few rpm's.

Most people here like the 2602 better.

how can someone understant if he has a good one?

what is the plus2? how is it better than before? plz share your experience. I am considering getting one.

hi sean, any feedbacks?

hi, if the race i'm attending does not restrict me to a 5.2mm pipe and can go 'outlaw', which pipe should i consider to match with the 353 plus2 engine ?

thanks in advance

What about pipes for .21 onroad engines? All I hear about is the 2015, what are other options and the attributes of those pipes compared to each other. Or is the 2015 "the" pipe?

I would go with whatever the latest and greatest Nova pipe is and if you don't care about rules just drill out the stinger a bit.

Well, the 2015 is an excellent all around pipe. If you want to try something different try out a Sirio or RB 2013. Sounds different, looks different, runs great.

Is there a 2052 pipe or something like that? How does that pipe compare to the 2015 or 2013?

Someone tried to Efra 2604 Rb in this engine 353??

hi, anyone can enlighten what is the difference between the 2601 pipe, 2607 pipe and the 2620 pipe ?

am more familiar with 2630 and 51607 pipes..

thanks in advance..

Lots of pipe questions...where are the experts at?

The 2601 pipe is a good all round pipe ( very similar to the 2602 )good low,mid & top end With best fuel mileage,the 2620 is gonna give you a little more top end over the 2601. the 2607 is a picco based pipe..if you have created a header to fit a nova motor its gonna give you alot more bottom But I find it very flat from mid to high RPMs. It does however work great on the picco motors..but again not on long straights. hope this helps

When your engine runs good, you got a good one. If everybody else with the same engine / pipe combo passes you, you got a bad one.

Easy actually, ain't it?