Post Your Straight Six Pics!

[VWNate1]

First and foremost :

Make sure it's properly tuned ! maybe one in every 100 engines i touch , are anywhere near properly tuned .

If it has points set the plugs gaps to .040 or .045 , if HEI , set to .050 or .060 ,
you'll feel the increased power immediately .

If it has points , make sure the points gap isn't over .014 as closer gap makes for better coil saturation , resulting in hotter sparks .

Timing is critical too , unlike the average 350 SBC , a 250 needs very little primary lead advance to create peak power @ work ~ what this means is : don't give it 12 degrees lead advance (static or dynamic) , try it @ TDC first then maybe give it a few degrees .

The biggest bang for your buck is to upgrade from breaker points ignition to HEI , even if just an old stock dizzy & coil .

You've always gotta do the basics before moving on and be aware , these are
light duty engines so Hot Rodding them leads to extremely short service life and to loose nut behind the wheel , blaming the truck instead of themselves .