It looks like you're on a roughly .4 mile track (pretty big), with very little banking, on a blue restrictor plate. Your front end numbers look pretty good, but I would change the caster on the left front so it sets in the middle of the adjustment slot. Your current setting on the LF makes the car physically hard to turn, and also scrubs off corner speed.
Provided you don't have a gear rule, I'd run a 15 tooth clutch with a 57, 56 or 55 gear. The blue plate is likely putting out only 10.5- 11 HP if you have only thrown a plate in and gone racing. Blue plate engines (legal ones at least) don't need to turn more than 5,000 RPM. The HP starts to fall off after 4,000-4500 RPM, and really takes a dive after 5K (down to 8.5 -9 HP).
Based upon the many restrictor plate engines I have dyno'd and carbs I have blueprinted and flowed, a good legal blue plate engine can produce 13 -13.5 HP and should race at 5000 RPM running alone on the track. This allows for some increase (roughly 5150 RPM) when in a draft). Red Plates are typically 13-13.5 HP when you just throw the plate in, and good ones with flowed carbs and dyno tuning put out 15.75 - 16.2 HP. You never want to get even close to the chip with a blue or red plate-- there's just no power up there in that RPM range, and you'll just be making RPM but going nowhere. So you could be down 2- 2.5 HP compared to the flowed and dyno'd engines, which may not sound like a big deal, buts it's approximately 20% if you've got 11 HP and your competitors have 13.2 HP!!!
Then there are all the other tricks perculiar to plate racing, ie. toe, stagger, tire pressure, axle lead or lag, aero packages, oils, jetting, air bleeds, etc., etc. etc. All of these things are different from non-plate racing. Plate racing is a separate breed, and the ones who have all the little things in place can look like cheated-up rockets, and still be 100% legal. It is frustrating if you haven't figured out all the "tricks"; but its smooth sailing when you finally get everything right.
Hope I've helped some.
Mike Hudson