It dosent take a lot of money or a big motor to beat dunny doors.My sons 120y coupe was able to pass and keep ahead of this VL all weekend(even with dodgy rear end.Have since fitted a sunny rear end.
PS has an A12 motor,oval port head, cam,32/36 webber.GREG

The Lseries is a pretty easy conversion though it requires a modified cross member gearbox cross member and Sump amongst a few other little things. The biggest part is engineering it Cost wise. Because funnily its cheaper to buy an L16 or L18 and 5 speed than it is to buy an A14 Or A15 with 5 speed. You could look around and most likely pick up a rusty old stanza or 200B with all the running gear and theres most ya bits for a conversion. Also a L16 or L18 with good compression extractors and a weber would nearly see you blow off a slightly worked A14 or A15. and still have a reliable economical car. Just to add any work you did to the L series engine would increase your power larger than an A series with more work Just because of power to weight ratio. Also look into modified cars because you may not be able to have them if your not allowed V8's and Turbos.

A well built A14/15 will pull the sunny up to a point, depends how fast you want to go... As stated the L series isn't too much trouble to fit and will reap the best benefit from mods.

If you want to stroke the A14, I have a A15 crank (original grind) you (or any1) can have for shipping costs. I refuse to scrap it!!

how heavy are these wagons? and what diff do they hav? might need to look at the diff aswell because if you hav more pushing it forward and the more holding it back all equates to more stress on drive train...

But still a milde a15 or eaven a14 in a sub tone car should atleast make stockish v6 commador sweat.

cold air intake and a sports exhaust went in last night lol love the sound of the carbie at full noise (stock) has a bit more get up and go not alot though.