Double check these compression numbers. If he's at 160# you're just over the limit of pump gas. (Normally 150 is about as high as you want to go on a 260.)

You can add an alt to any older 2.5 here is the info. I had these on my 2.4 Bps and they ran like new engines. I did not use my charger for two years.


http://www.simonmotorsports.com/page10.html

the 2.5 efi race motor is a masterpiece of 2 cycle enginuity. i have rigged 3 32 skaters with these and 1 36 skater w/ them.
1- the center motor gets it's ass wipped.
2- you may have to add a center pod/ sponson. this will help
alot, with out sacrificing too much speed for v.s the cost
of replacing sheared cases and poped power heads on that
center engine.
3- they always charge
4- even though they have a shift interupt shift them in gear
you'll be turning big prop's
5- if they are 15" mid sections they have 2 1/2 inches of built
in set back
6- the blocks are all machined mating surfaces so they have
o-rings every where instead of gaskets
7- hopefully they have 2:1 gear ratio's which helps extend life
of cases and drasticly improves acceleration.
8- they idle great.
9- they love 7500 r.p.m, they start making power after 6000+
if you run them around at 5000 rpm you will loose life on
them.

in short they rule . better than the 3x's for c.g reasons especiallyu in the ruff water. diamond marine is the absolut guru's of these engines. i myself have had a couple spin well over 10,000 rpm, and not just for a run. the noise is awesome. dont wait swap the console and get hangin and bangin.

good luck

Hay thanks for all the great info!!! Yes it is the spectre with the flame job. He is asking what I was going to list my boar for ,So I thought what the hell! lets try a cat.