Corty1979

thanks for the advice ando i dont really know much about xflows thats why im on here trying together as much info as possible with the oil pump what do you do with the standard pump then or does the standard one work just fine

the sump i built for the holden was just windage tray plus some baffeling with pick up for oil pump through side of sump ive read through your some of your threads i see you know your stuff when it comes to these engines i was allways lead to believe you need close to 15.1 cr to run methanol guess i was wrong so after what ive read so far im thinking if i zero deck the block use flat tops an take say 20 to 30 thou of the head i should be around the 13 to 14 cr mark ? im doing to use hbeam rods as i want it to last a long time pistons im un sure on except ill most likely go 30 tho not sure how to go about the crank but have seen pics of your one in the ute build looks like it would be good for speedway to i use to do half arse knife edge jobs on the holden cranks i ran ill most likely get the head ported at the machine shop and have bigger valves installed just not sure on which size to use and inlet manifold ill cut and poert that out myself and ill be getting a metho 350 holley from clarkos peformance apparently he builds good ones oil pump ill just get an aftermarket high volume one

thanks ando ill check out those other threads im going to do as much of the work myself except for block and head machining ive ported my own manifolds before when i use to race holdens just wasnt really sure if getting power out of a xflow would be same as getting out of a 202 or 186 allso would the sump design be same as what you would do with a old holden 6 and i will be using a main cap girdle

So what is the best way of bringing up the Cr to run methanol are flat tops the way to go or dished Pistons Allso anything else would be help full

I'm about to start building a tf cortina to run In modified production and I'm after some info on what's involved in getting a 250 xflow to run on methanol any help would be good just so I've got some idea when I visit the engine builders Cheers